export default {
  jpg: 'image/jpeg',
  jpeg: 'image/jpeg',
  png: 'image/png',
  gif: 'image/gif',
  mp3: 'audio/mpeg',
  mp4: 'video/mp4',
  avi: 'video/avi',
  wmv: 'video/x-ms-wmv',
  pdf: 'application/pdf',
  doc: 'application/msword',
  docx: 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
  ppt: 'application/vnd.ms-powerpoint',
  pptx: 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
  xls: 'application/vnd.ms-excel',
  xlsx: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
}

/* ------- 参考 --------
{
  '123': 'application/vnd.lotus-1-2-3',
  '1km': 'application/vnd.1000minds.decision-model+xml',
  '3dml': 'text/vnd.in3d.3dml',
  '3ds': 'image/x-3ds',
  '3g2': 'video/3gpp2',
  '3gp': 'video/3gpp',
  '3gpp': 'video/3gpp',
  '3mf': 'model/3mf',
  '7z': 'application/x-7z-compressed',
  'aab': 'application/x-authorware-bin',
  'aac': 'audio/x-aac',
  'aam': 'application/x-authorware-map',
  'aas': 'application/x-authorware-seg',
  'abw': 'application/x-abiword',
  'ac': 'application/vnd.nokia.n-gage.ac+xml',
  'acc': 'application/vnd.americandynamics.acc',
  'ace': 'application/x-ace-compressed',
  'acu': 'application/vnd.acucobol',
  'acutc': 'application/vnd.acucorp',
  'adp': 'audio/adpcm',
  'aep': 'application/vnd.audiograph',
  'afm': 'application/x-font-type1',
  'afp': 'application/vnd.ibm.modcap',
  'ahead': 'application/vnd.ahead.space',
  'ai': 'application/postscript',
  'aif': 'audio/x-aiff',
  'aifc': 'audio/x-aiff',
  'aiff': 'audio/x-aiff',
  'air': 'application/vnd.adobe.air-application-installer-package+zip',
  'ait': 'application/vnd.dvb.ait',
  'ami': 'application/vnd.amiga.ami',
  'apk': 'application/vnd.android.package-archive',
  'apng': 'image/apng',
  'appcache': 'text/cache-manifest',
  'application': 'application/x-ms-application',
  'apr': 'application/vnd.lotus-approach',
  'arc': 'application/x-freearc',
  'arj': 'application/x-arj',
  'asc': 'application/pgp-signature',
  'asf': 'video/x-ms-asf',
  'asm': 'text/x-asm',
  'aso': 'application/vnd.accpac.simply.aso',
  'asx': 'video/x-ms-asf',
  'atc': 'application/vnd.acucorp',
  'atom': 'application/atom+xml',
  'atomcat': 'application/atomcat+xml',
  'atomdeleted': 'application/atomdeleted+xml',
  'atomsvc': 'application/atomsvc+xml',
  'atx': 'application/vnd.antix.game-component',
  'au': 'audio/basic',
  'avi': 'video/x-msvideo',
  'aw': 'application/applixware',
  'azf': 'application/vnd.airzip.filesecure.azf',
  'azs': 'application/vnd.airzip.filesecure.azs',
  'azv': 'image/vnd.airzip.accelerator.azv',
  'azw': 'application/vnd.amazon.ebook',
  'bat': 'application/x-msdownload',
  'bcpio': 'application/x-bcpio',
  'bdf': 'application/x-font-bdf',
  'bdm': 'application/vnd.syncml.dm+wbxml',
  'bdoc': 'application/x-bdoc',
  'bed': 'application/vnd.realvnc.bed',
  'bh2': 'application/vnd.fujitsu.oasysprs',
  'bin': 'application/octet-stream',
  'blb': 'application/x-blorb',
  'blorb': 'application/x-blorb',
  'bmi': 'application/vnd.bmi',
  'bmml': 'application/vnd.balsamiq.bmml+xml',
  'bmp': 'image/x-ms-bmp',
  'book': 'application/vnd.framemaker',
  'box': 'application/vnd.previewsystems.box',
  'boz': 'application/x-bzip2',
  'bpk': 'application/octet-stream',
  'bsp': 'model/vnd.valve.source.compiled-map',
  'btif': 'image/prs.btif',
  'buffer': 'application/octet-stream',
  'bz': 'application/x-bzip',
  'bz2': 'application/x-bzip2',
  'c': 'text/x-c',
  'c11amc': 'application/vnd.cluetrust.cartomobile-config',
  'c11amz': 'application/vnd.cluetrust.cartomobile-config-pkg',
  'c4d': 'application/vnd.clonk.c4group',
  'c4f': 'application/vnd.clonk.c4group',
  'c4g': 'application/vnd.clonk.c4group',
  'c4p': 'application/vnd.clonk.c4group',
  'c4u': 'application/vnd.clonk.c4group',
  'cab': 'application/vnd.ms-cab-compressed',
  'caf': 'audio/x-caf',
  'cap': 'application/vnd.tcpdump.pcap',
  'car': 'application/vnd.curl.car',
  'cat': 'application/vnd.ms-pki.seccat',
  'cb7': 'application/x-cbr',
  'cba': 'application/x-cbr',
  'cbr': 'application/x-cbr',
  'cbt': 'application/x-cbr',
  'cbz': 'application/x-cbr',
  'cc': 'text/x-c',
  'cco': 'application/x-cocoa',
  'cct': 'application/x-director',
  'ccxml': 'application/ccxml+xml',
  'cdbcmsg': 'application/vnd.contact.cmsg',
  'cdf': 'application/x-netcdf',
  'cdfx': 'application/cdfx+xml',
  'cdkey': 'application/vnd.mediastation.cdkey',
  'cdmia': 'application/cdmi-capability',
  'cdmic': 'application/cdmi-container',
  'cdmid': 'application/cdmi-domain',
  'cdmio': 'application/cdmi-object',
  'cdmiq': 'application/cdmi-queue',
  'cdx': 'chemical/x-cdx',
  'cdxml': 'application/vnd.chemdraw+xml',
  'cdy': 'application/vnd.cinderella',
  'cer': 'application/pkix-cert',
  'cfs': 'application/x-cfs-compressed',
  'cgm': 'image/cgm',
  'chat': 'application/x-chat',
  'chm': 'application/vnd.ms-htmlhelp',
  'chrt': 'application/vnd.kde.kchart',
  'cif': 'chemical/x-cif',
  'cii': 'application/vnd.anser-web-certificate-issue-initiation',
  'cil': 'application/vnd.ms-artgalry',
  'cla': 'application/vnd.claymore',
  'class': 'application/java-vm',
  'clkk': 'application/vnd.crick.clicker.keyboard',
  'clkp': 'application/vnd.crick.clicker.palette',
  'clkt': 'application/vnd.crick.clicker.template',
  'clkw': 'application/vnd.crick.clicker.wordbank',
  'clkx': 'application/vnd.crick.clicker',
  'clp': 'application/x-msclip',
  'cmc': 'application/vnd.cosmocaller',
  'cmdf': 'chemical/x-cmdf',
  'cml': 'chemical/x-cml',
  'cmp': 'application/vnd.yellowriver-custom-menu',
  'cmx': 'image/x-cmx',
  'cod': 'application/vnd.rim.cod',
  'coffee': 'text/coffeescript',
  'com': 'application/x-msdownload',
  'conf': 'text/plain',
  'cpio': 'application/x-cpio',
  'cpp': 'text/x-c',
  'cpt': 'application/mac-compactpro',
  'crd': 'application/x-mscardfile',
  'crl': 'application/pkix-crl',
  'crt': 'application/x-x509-ca-cert',
  'crx': 'application/x-chrome-extension',
  'cryptonote': 'application/vnd.rig.cryptonote',
  'csh': 'application/x-csh',
  'csl': 'application/vnd.citationstyles.style+xml',
  'csml': 'chemical/x-csml',
  'csp': 'application/vnd.commonspace',
  'css': 'text/css',
  'cst': 'application/x-director',
  'csv': 'text/csv',
  'cu': 'application/cu-seeme',
  'curl': 'text/vnd.curl',
  'cww': 'application/prs.cww',
  'cxt': 'application/x-director',
  'cxx': 'text/x-c',
  'dae': 'model/vnd.collada+xml',
  'daf': 'application/vnd.mobius.daf',
  'dart': 'application/vnd.dart',
  'dataless': 'application/vnd.fdsn.seed',
  'davmount': 'application/davmount+xml',
  'dbk': 'application/docbook+xml',
  'dcr': 'application/x-director',
  'dcurl': 'text/vnd.curl.dcurl',
  'dd2': 'application/vnd.oma.dd2+xml',
  'ddd': 'application/vnd.fujixerox.ddd',
  'ddf': 'application/vnd.syncml.dmddf+xml',
  'dds': 'image/vnd.ms-dds',
  'deb': 'application/x-debian-package',
  'def': 'text/plain',
  'deploy': 'application/octet-stream',
  'der': 'application/x-x509-ca-cert',
  'dfac': 'application/vnd.dreamfactory',
  'dgc': 'application/x-dgc-compressed',
  'dic': 'text/x-c',
  'dir': 'application/x-director',
  'dis': 'application/vnd.mobius.dis',
  'disposition-notification': 'message/disposition-notification',
  'dist': 'application/octet-stream',
  'distz': 'application/octet-stream',
  'djv': 'image/vnd.djvu',
  'djvu': 'image/vnd.djvu',
  'dll': 'application/x-msdownload',
  'dmg': 'application/x-apple-diskimage',
  'dmp': 'application/vnd.tcpdump.pcap',
  'dms': 'application/octet-stream',
  'dna': 'application/vnd.dna',
  'doc': 'application/msword',
  'docm': 'application/vnd.ms-word.document.macroenabled.12',
  'docx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
  'dot': 'application/msword',
  'dotm': 'application/vnd.ms-word.template.macroenabled.12',
  'dotx': 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
  'dp': 'application/vnd.osgi.dp',
  'dpg': 'application/vnd.dpgraph',
  'dra': 'audio/vnd.dra',
  'drle': 'image/dicom-rle',
  'dsc': 'text/prs.lines.tag',
  'dssc': 'application/dssc+der',
  'dtb': 'application/x-dtbook+xml',
  'dtd': 'application/xml-dtd',
  'dts': 'audio/vnd.dts',
  'dtshd': 'audio/vnd.dts.hd',
  'dump': 'application/octet-stream',
  'dvb': 'video/vnd.dvb.file',
  'dvi': 'application/x-dvi',
  'dwd': 'application/atsc-dwd+xml',
  'dwf': 'model/vnd.dwf',
  'dwg': 'image/vnd.dwg',
  'dxf': 'image/vnd.dxf',
  'dxp': 'application/vnd.spotfire.dxp',
  'dxr': 'application/x-director',
  'ear': 'application/java-archive',
  'ecelp4800': 'audio/vnd.nuera.ecelp4800',
  'ecelp7470': 'audio/vnd.nuera.ecelp7470',
  'ecelp9600': 'audio/vnd.nuera.ecelp9600',
  'ecma': 'application/ecmascript',
  'edm': 'application/vnd.novadigm.edm',
  'edx': 'application/vnd.novadigm.edx',
  'efif': 'application/vnd.picsel',
  'ei6': 'application/vnd.pg.osasli',
  'elc': 'application/octet-stream',
  'emf': 'image/emf',
  'eml': 'message/rfc822',
  'emma': 'application/emma+xml',
  'emotionml': 'application/emotionml+xml',
  'emz': 'application/x-msmetafile',
  'eol': 'audio/vnd.digital-winds',
  'eot': 'application/vnd.ms-fontobject',
  'eps': 'application/postscript',
  'epub': 'application/epub+zip',
  'es': 'application/ecmascript',
  'es3': 'application/vnd.eszigno3+xml',
  'esa': 'application/vnd.osgi.subsystem',
  'esf': 'application/vnd.epson.esf',
  'et3': 'application/vnd.eszigno3+xml',
  'etx': 'text/x-setext',
  'eva': 'application/x-eva',
  'evy': 'application/x-envoy',
  'exe': 'application/x-msdownload',
  'exi': 'application/exi',
  'exr': 'image/aces',
  'ext': 'application/vnd.novadigm.ext',
  'ez': 'application/andrew-inset',
  'ez2': 'application/vnd.ezpix-album',
  'ez3': 'application/vnd.ezpix-package',
  'f': 'text/x-fortran',
  'f4v': 'video/x-f4v',
  'f77': 'text/x-fortran',
  'f90': 'text/x-fortran',
  'fbs': 'image/vnd.fastbidsheet',
  'fcdt': 'application/vnd.adobe.formscentral.fcdt',
  'fcs': 'application/vnd.isac.fcs',
  'fdf': 'application/vnd.fdf',
  'fdt': 'application/fdt+xml',
  'fe_launch': 'application/vnd.denovo.fcselayout-link',
  'fg5': 'application/vnd.fujitsu.oasysgp',
  'fgd': 'application/x-director',
  'fh': 'image/x-freehand',
  'fh4': 'image/x-freehand',
  'fh5': 'image/x-freehand',
  'fh7': 'image/x-freehand',
  'fhc': 'image/x-freehand',
  'fig': 'application/x-xfig',
  'fits': 'image/fits',
  'flac': 'audio/x-flac',
  'fli': 'video/x-fli',
  'flo': 'application/vnd.micrografx.flo',
  'flv': 'video/x-flv',
  'flw': 'application/vnd.kde.kivio',
  'flx': 'text/vnd.fmi.flexstor',
  'fly': 'text/vnd.fly',
  'fm': 'application/vnd.framemaker',
  'fnc': 'application/vnd.frogans.fnc',
  'fo': 'application/vnd.software602.filler.form+xml',
  'for': 'text/x-fortran',
  'fpx': 'image/vnd.fpx',
  'frame': 'application/vnd.framemaker',
  'fsc': 'application/vnd.fsc.weblaunch',
  'fst': 'image/vnd.fst',
  'ftc': 'application/vnd.fluxtime.clip',
  'fti': 'application/vnd.anser-web-funds-transfer-initiation',
  'fvt': 'video/vnd.fvt',
  'fxp': 'application/vnd.adobe.fxp',
  'fxpl': 'application/vnd.adobe.fxp',
  'fzs': 'application/vnd.fuzzysheet',
  'g2w': 'application/vnd.geoplan',
  'g3': 'image/g3fax',
  'g3w': 'application/vnd.geospace',
  'gac': 'application/vnd.groove-account',
  'gam': 'application/x-tads',
  'gbr': 'application/rpki-ghostbusters',
  'gca': 'application/x-gca-compressed',
  'gdl': 'model/vnd.gdl',
  'gdoc': 'application/vnd.google-apps.document',
  'geo': 'application/vnd.dynageo',
  'geojson': 'application/geo+json',
  'gex': 'application/vnd.geometry-explorer',
  'ggb': 'application/vnd.geogebra.file',
  'ggt': 'application/vnd.geogebra.tool',
  'ghf': 'application/vnd.groove-help',
  'gif': 'image/gif',
  'gim': 'application/vnd.groove-identity-message',
  'glb': 'model/gltf-binary',
  'gltf': 'model/gltf+json',
  'gml': 'application/gml+xml',
  'gmx': 'application/vnd.gmx',
  'gnumeric': 'application/x-gnumeric',
  'gph': 'application/vnd.flographit',
  'gpx': 'application/gpx+xml',
  'gqf': 'application/vnd.grafeq',
  'gqs': 'application/vnd.grafeq',
  'gram': 'application/srgs',
  'gramps': 'application/x-gramps-xml',
  'gre': 'application/vnd.geometry-explorer',
  'grv': 'application/vnd.groove-injector',
  'grxml': 'application/srgs+xml',
  'gsf': 'application/x-font-ghostscript',
  'gsheet': 'application/vnd.google-apps.spreadsheet',
  'gslides': 'application/vnd.google-apps.presentation',
  'gtar': 'application/x-gtar',
  'gtm': 'application/vnd.groove-tool-message',
  'gtw': 'model/vnd.gtw',
  'gv': 'text/vnd.graphviz',
  'gxf': 'application/gxf',
  'gxt': 'application/vnd.geonext',
  'gz': 'application/gzip',
  'h': 'text/x-c',
  'h261': 'video/h261',
  'h263': 'video/h263',
  'h264': 'video/h264',
  'hal': 'application/vnd.hal+xml',
  'hbci': 'application/vnd.hbci',
  'hbs': 'text/x-handlebars-template',
  'hdd': 'application/x-virtualbox-hdd',
  'hdf': 'application/x-hdf',
  'heic': 'image/heic',
  'heics': 'image/heic-sequence',
  'heif': 'image/heif',
  'heifs': 'image/heif-sequence',
  'hej2': 'image/hej2k',
  'held': 'application/atsc-held+xml',
  'hh': 'text/x-c',
  'hjson': 'application/hjson',
  'hlp': 'application/winhlp',
  'hpgl': 'application/vnd.hp-hpgl',
  'hpid': 'application/vnd.hp-hpid',
  'hps': 'application/vnd.hp-hps',
  'hqx': 'application/mac-binhex40',
  'hsj2': 'image/hsj2',
  'htc': 'text/x-component',
  'htke': 'application/vnd.kenameaapp',
  'htm': 'text/html',
  'html': 'text/html',
  'hvd': 'application/vnd.yamaha.hv-dic',
  'hvp': 'application/vnd.yamaha.hv-voice',
  'hvs': 'application/vnd.yamaha.hv-script',
  'i2g': 'application/vnd.intergeo',
  'icc': 'application/vnd.iccprofile',
  'ice': 'x-conference/x-cooltalk',
  'icm': 'application/vnd.iccprofile',
  'ico': 'image/x-icon',
  'ics': 'text/calendar',
  'ief': 'image/ief',
  'ifb': 'text/calendar',
  'ifm': 'application/vnd.shana.informed.formdata',
  'iges': 'model/iges',
  'igl': 'application/vnd.igloader',
  'igm': 'application/vnd.insors.igm',
  'igs': 'model/iges',
  'igx': 'application/vnd.micrografx.igx',
  'iif': 'application/vnd.shana.informed.interchange',
  'img': 'application/octet-stream',
  'imp': 'application/vnd.accpac.simply.imp',
  'ims': 'application/vnd.ms-ims',
  'in': 'text/plain',
  'ini': 'text/plain',
  'ink': 'application/inkml+xml',
  'inkml': 'application/inkml+xml',
  'install': 'application/x-install-instructions',
  'iota': 'application/vnd.astraea-software.iota',
  'ipfix': 'application/ipfix',
  'ipk': 'application/vnd.shana.informed.package',
  'irm': 'application/vnd.ibm.rights-management',
  'irp': 'application/vnd.irepository.package+xml',
  'iso': 'application/x-iso9660-image',
  'itp': 'application/vnd.shana.informed.formtemplate',
  'its': 'application/its+xml',
  'ivp': 'application/vnd.immervision-ivp',
  'ivu': 'application/vnd.immervision-ivu',
  'jad': 'text/vnd.sun.j2me.app-descriptor',
  'jade': 'text/jade',
  'jam': 'application/vnd.jam',
  'jar': 'application/java-archive',
  'jardiff': 'application/x-java-archive-diff',
  'java': 'text/x-java-source',
  'jhc': 'image/jphc',
  'jisp': 'application/vnd.jisp',
  'jls': 'image/jls',
  'jlt': 'application/vnd.hp-jlyt',
  'jng': 'image/x-jng',
  'jnlp': 'application/x-java-jnlp-file',
  'joda': 'application/vnd.joost.joda-archive',
  'jp2': 'image/jp2',
  'jpe': 'image/jpeg',
  'jpeg': 'image/jpeg',
  'jpf': 'image/jpx',
  'jpg': 'image/jpeg',
  'jpg2': 'image/jp2',
  'jpgm': 'video/jpm',
  'jpgv': 'video/jpeg',
  'jph': 'image/jph',
  'jpm': 'video/jpm',
  'jpx': 'image/jpx',
  'js': 'application/javascript',
  'json': 'application/json',
  'json5': 'application/json5',
  'jsonld': 'application/ld+json',
  'jsonml': 'application/jsonml+json',
  'jsx': 'text/jsx',
  'jxr': 'image/jxr',
  'jxra': 'image/jxra',
  'jxrs': 'image/jxrs',
  'jxs': 'image/jxs',
  'jxsc': 'image/jxsc',
  'jxsi': 'image/jxsi',
  'jxss': 'image/jxss',
  'kar': 'audio/midi',
  'karbon': 'application/vnd.kde.karbon',
  'kdbx': 'application/x-keepass2',
  'keynote': 'application/vnd.apple.keynote',
  'kfo': 'application/vnd.kde.kformula',
  'kia': 'application/vnd.kidspiration',
  'kml': 'application/vnd.google-earth.kml+xml',
  'kmz': 'application/vnd.google-earth.kmz',
  'kne': 'application/vnd.kinar',
  'knp': 'application/vnd.kinar',
  'kon': 'application/vnd.kde.kontour',
  'kpr': 'application/vnd.kde.kpresenter',
  'kpt': 'application/vnd.kde.kpresenter',
  'kpxx': 'application/vnd.ds-keypoint',
  'ksp': 'application/vnd.kde.kspread',
  'ktr': 'application/vnd.kahootz',
  'ktx': 'image/ktx',
  'ktz': 'application/vnd.kahootz',
  'kwd': 'application/vnd.kde.kword',
  'kwt': 'application/vnd.kde.kword',
  'lasxml': 'application/vnd.las.las+xml',
  'latex': 'application/x-latex',
  'lbd': 'application/vnd.llamagraphics.life-balance.desktop',
  'lbe': 'application/vnd.llamagraphics.life-balance.exchange+xml',
  'les': 'application/vnd.hhe.lesson-player',
  'less': 'text/less',
  'lgr': 'application/lgr+xml',
  'lha': 'application/x-lzh-compressed',
  'link66': 'application/vnd.route66.link66+xml',
  'list': 'text/plain',
  'list3820': 'application/vnd.ibm.modcap',
  'listafp': 'application/vnd.ibm.modcap',
  'litcoffee': 'text/coffeescript',
  'lnk': 'application/x-ms-shortcut',
  'log': 'text/plain',
  'lostxml': 'application/lost+xml',
  'lrf': 'application/octet-stream',
  'lrm': 'application/vnd.ms-lrm',
  'ltf': 'application/vnd.frogans.ltf',
  'lua': 'text/x-lua',
  'luac': 'application/x-lua-bytecode',
  'lvp': 'audio/vnd.lucent.voice',
  'lwp': 'application/vnd.lotus-wordpro',
  'lzh': 'application/x-lzh-compressed',
  'm13': 'application/x-msmediaview',
  'm14': 'application/x-msmediaview',
  'm1v': 'video/mpeg',
  'm21': 'application/mp21',
  'm2a': 'audio/mpeg',
  'm2v': 'video/mpeg',
  'm3a': 'audio/mpeg',
  'm3u': 'audio/x-mpegurl',
  'm3u8': 'application/vnd.apple.mpegurl',
  'm4a': 'audio/x-m4a',
  'm4p': 'application/mp4',
  'm4u': 'video/vnd.mpegurl',
  'm4v': 'video/x-m4v',
  'ma': 'application/mathematica',
  'mads': 'application/mads+xml',
  'maei': 'application/mmt-aei+xml',
  'mag': 'application/vnd.ecowin.chart',
  'maker': 'application/vnd.framemaker',
  'man': 'text/troff',
  'manifest': 'text/cache-manifest',
  'map': 'application/json',
  'mar': 'application/octet-stream',
  'markdown': 'text/markdown',
  'mathml': 'application/mathml+xml',
  'mb': 'application/mathematica',
  'mbk': 'application/vnd.mobius.mbk',
  'mbox': 'application/mbox',
  'mc1': 'application/vnd.medcalcdata',
  'mcd': 'application/vnd.mcd',
  'mcurl': 'text/vnd.curl.mcurl',
  'md': 'text/markdown',
  'mdb': 'application/x-msaccess',
  'mdi': 'image/vnd.ms-modi',
  'mdx': 'text/mdx',
  'me': 'text/troff',
  'mesh': 'model/mesh',
  'meta4': 'application/metalink4+xml',
  'metalink': 'application/metalink+xml',
  'mets': 'application/mets+xml',
  'mfm': 'application/vnd.mfmp',
  'mft': 'application/rpki-manifest',
  'mgp': 'application/vnd.osgeo.mapguide.package',
  'mgz': 'application/vnd.proteus.magazine',
  'mid': 'audio/midi',
  'midi': 'audio/midi',
  'mie': 'application/x-mie',
  'mif': 'application/vnd.mif',
  'mime': 'message/rfc822',
  'mj2': 'video/mj2',
  'mjp2': 'video/mj2',
  'mjs': 'application/javascript',
  'mk3d': 'video/x-matroska',
  'mka': 'audio/x-matroska',
  'mkd': 'text/x-markdown',
  'mks': 'video/x-matroska',
  'mkv': 'video/x-matroska',
  'mlp': 'application/vnd.dolby.mlp',
  'mmd': 'application/vnd.chipnuts.karaoke-mmd',
  'mmf': 'application/vnd.smaf',
  'mml': 'text/mathml',
  'mmr': 'image/vnd.fujixerox.edmics-mmr',
  'mng': 'video/x-mng',
  'mny': 'application/x-msmoney',
  'mobi': 'application/x-mobipocket-ebook',
  'mods': 'application/mods+xml',
  'mov': 'video/quicktime',
  'movie': 'video/x-sgi-movie',
  'mp2': 'audio/mpeg',
  'mp21': 'application/mp21',
  'mp2a': 'audio/mpeg',
  'mp3': 'audio/mpeg',
  'mp4': 'video/mp4',
  'mp4a': 'audio/mp4',
  'mp4s': 'application/mp4',
  'mp4v': 'video/mp4',
  'mpc': 'application/vnd.mophun.certificate',
  'mpd': 'application/dash+xml',
  'mpe': 'video/mpeg',
  'mpeg': 'video/mpeg',
  'mpg': 'video/mpeg',
  'mpg4': 'video/mp4',
  'mpga': 'audio/mpeg',
  'mpkg': 'application/vnd.apple.installer+xml',
  'mpm': 'application/vnd.blueice.multipass',
  'mpn': 'application/vnd.mophun.application',
  'mpp': 'application/vnd.ms-project',
  'mpt': 'application/vnd.ms-project',
  'mpy': 'application/vnd.ibm.minipay',
  'mqy': 'application/vnd.mobius.mqy',
  'mrc': 'application/marc',
  'mrcx': 'application/marcxml+xml',
  'ms': 'text/troff',
  'mscml': 'application/mediaservercontrol+xml',
  'mseed': 'application/vnd.fdsn.mseed',
  'mseq': 'application/vnd.mseq',
  'msf': 'application/vnd.epson.msf',
  'msg': 'application/vnd.ms-outlook',
  'msh': 'model/mesh',
  'msi': 'application/x-msdownload',
  'msl': 'application/vnd.mobius.msl',
  'msm': 'application/octet-stream',
  'msp': 'application/octet-stream',
  'msty': 'application/vnd.muvee.style',
  'mtl': 'model/mtl',
  'mts': 'model/vnd.mts',
  'mus': 'application/vnd.musician',
  'musd': 'application/mmt-usd+xml',
  'musicxml': 'application/vnd.recordare.musicxml+xml',
  'mvb': 'application/x-msmediaview',
  'mwf': 'application/vnd.mfer',
  'mxf': 'application/mxf',
  'mxl': 'application/vnd.recordare.musicxml',
  'mxmf': 'audio/mobile-xmf',
  'mxml': 'application/xv+xml',
  'mxs': 'application/vnd.triscape.mxs',
  'mxu': 'video/vnd.mpegurl',
  'n-gage': 'application/vnd.nokia.n-gage.symbian.install',
  'n3': 'text/n3',
  'nb': 'application/mathematica',
  'nbp': 'application/vnd.wolfram.player',
  'nc': 'application/x-netcdf',
  'ncx': 'application/x-dtbncx+xml',
  'nfo': 'text/x-nfo',
  'ngdat': 'application/vnd.nokia.n-gage.data',
  'nitf': 'application/vnd.nitf',
  'nlu': 'application/vnd.neurolanguage.nlu',
  'nml': 'application/vnd.enliven',
  'nnd': 'application/vnd.noblenet-directory',
  'nns': 'application/vnd.noblenet-sealer',
  'nnw': 'application/vnd.noblenet-web',
  'npx': 'image/vnd.net-fpx',
  'nq': 'application/n-quads',
  'nsc': 'application/x-conference',
  'nsf': 'application/vnd.lotus-notes',
  'nt': 'application/n-triples',
  'ntf': 'application/vnd.nitf',
  'numbers': 'application/vnd.apple.numbers',
  'nzb': 'application/x-nzb',
  'oa2': 'application/vnd.fujitsu.oasys2',
  'oa3': 'application/vnd.fujitsu.oasys3',
  'oas': 'application/vnd.fujitsu.oasys',
  'obd': 'application/x-msbinder',
  'obgx': 'application/vnd.openblox.game+xml',
  'obj': 'model/obj',
  'oda': 'application/oda',
  'odb': 'application/vnd.oasis.opendocument.database',
  'odc': 'application/vnd.oasis.opendocument.chart',
  'odf': 'application/vnd.oasis.opendocument.formula',
  'odft': 'application/vnd.oasis.opendocument.formula-template',
  'odg': 'application/vnd.oasis.opendocument.graphics',
  'odi': 'application/vnd.oasis.opendocument.image',
  'odm': 'application/vnd.oasis.opendocument.text-master',
  'odp': 'application/vnd.oasis.opendocument.presentation',
  'ods': 'application/vnd.oasis.opendocument.spreadsheet',
  'odt': 'application/vnd.oasis.opendocument.text',
  'oga': 'audio/ogg',
  'ogex': 'model/vnd.opengex',
  'ogg': 'audio/ogg',
  'ogv': 'video/ogg',
  'ogx': 'application/ogg',
  'omdoc': 'application/omdoc+xml',
  'onepkg': 'application/onenote',
  'onetmp': 'application/onenote',
  'onetoc': 'application/onenote',
  'onetoc2': 'application/onenote',
  'opf': 'application/oebps-package+xml',
  'opml': 'text/x-opml',
  'oprc': 'application/vnd.palm',
  'org': 'text/x-org',
  'osf': 'application/vnd.yamaha.openscoreformat',
  'osfpvg': 'application/vnd.yamaha.openscoreformat.osfpvg+xml',
  'osm': 'application/vnd.openstreetmap.data+xml',
  'otc': 'application/vnd.oasis.opendocument.chart-template',
  'otf': 'font/otf',
  'otg': 'application/vnd.oasis.opendocument.graphics-template',
  'oth': 'application/vnd.oasis.opendocument.text-web',
  'oti': 'application/vnd.oasis.opendocument.image-template',
  'otp': 'application/vnd.oasis.opendocument.presentation-template',
  'ots': 'application/vnd.oasis.opendocument.spreadsheet-template',
  'ott': 'application/vnd.oasis.opendocument.text-template',
  'ova': 'application/x-virtualbox-ova',
  'ovf': 'application/x-virtualbox-ovf',
  'owl': 'application/rdf+xml',
  'oxps': 'application/oxps',
  'oxt': 'application/vnd.openofficeorg.extension',
  'p': 'text/x-pascal',
  'p10': 'application/pkcs10',
  'p12': 'application/x-pkcs12',
  'p7b': 'application/x-pkcs7-certificates',
  'p7c': 'application/pkcs7-mime',
  'p7m': 'application/pkcs7-mime',
  'p7r': 'application/x-pkcs7-certreqresp',
  'p7s': 'application/pkcs7-signature',
  'p8': 'application/pkcs8',
  'pac': 'application/x-ns-proxy-autoconfig',
  'pages': 'application/vnd.apple.pages',
  'pas': 'text/x-pascal',
  'paw': 'application/vnd.pawaafile',
  'pbd': 'application/vnd.powerbuilder6',
  'pbm': 'image/x-portable-bitmap',
  'pcap': 'application/vnd.tcpdump.pcap',
  'pcf': 'application/x-font-pcf',
  'pcl': 'application/vnd.hp-pcl',
  'pclxl': 'application/vnd.hp-pclxl',
  'pct': 'image/x-pict',
  'pcurl': 'application/vnd.curl.pcurl',
  'pcx': 'image/x-pcx',
  'pdb': 'application/x-pilot',
  'pde': 'text/x-processing',
  'pdf': 'application/pdf',
  'pem': 'application/x-x509-ca-cert',
  'pfa': 'application/x-font-type1',
  'pfb': 'application/x-font-type1',
  'pfm': 'application/x-font-type1',
  'pfr': 'application/font-tdpfr',
  'pfx': 'application/x-pkcs12',
  'pgm': 'image/x-portable-graymap',
  'pgn': 'application/x-chess-pgn',
  'pgp': 'application/pgp-encrypted',
  'php': 'application/x-httpd-php',
  'pic': 'image/x-pict',
  'pkg': 'application/octet-stream',
  'pki': 'application/pkixcmp',
  'pkipath': 'application/pkix-pkipath',
  'pkpass': 'application/vnd.apple.pkpass',
  'pl': 'application/x-perl',
  'plb': 'application/vnd.3gpp.pic-bw-large',
  'plc': 'application/vnd.mobius.plc',
  'plf': 'application/vnd.pocketlearn',
  'pls': 'application/pls+xml',
  'pm': 'application/x-perl',
  'pml': 'application/vnd.ctc-posml',
  'png': 'image/png',
  'pnm': 'image/x-portable-anymap',
  'portpkg': 'application/vnd.macports.portpkg',
  'pot': 'application/vnd.ms-powerpoint',
  'potm': 'application/vnd.ms-powerpoint.template.macroenabled.12',
  'potx': 'application/vnd.openxmlformats-officedocument.presentationml.template',
  'ppam': 'application/vnd.ms-powerpoint.addin.macroenabled.12',
  'ppd': 'application/vnd.cups-ppd',
  'ppm': 'image/x-portable-pixmap',
  'pps': 'application/vnd.ms-powerpoint',
  'ppsm': 'application/vnd.ms-powerpoint.slideshow.macroenabled.12',
  'ppsx': 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
  'ppt': 'application/vnd.ms-powerpoint',
  'pptm': 'application/vnd.ms-powerpoint.presentation.macroenabled.12',
  'pptx': 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
  'pqa': 'application/vnd.palm',
  'prc': 'application/x-pilot',
  'pre': 'application/vnd.lotus-freelance',
  'prf': 'application/pics-rules',
  'provx': 'application/provenance+xml',
  'ps': 'application/postscript',
  'psb': 'application/vnd.3gpp.pic-bw-small',
  'psd': 'image/vnd.adobe.photoshop',
  'psf': 'application/x-font-linux-psf',
  'pskcxml': 'application/pskc+xml',
  'pti': 'image/prs.pti',
  'ptid': 'application/vnd.pvi.ptid1',
  'pub': 'application/x-mspublisher',
  'pvb': 'application/vnd.3gpp.pic-bw-var',
  'pwn': 'application/vnd.3m.post-it-notes',
  'pya': 'audio/vnd.ms-playready.media.pya',
  'pyv': 'video/vnd.ms-playready.media.pyv',
  'qam': 'application/vnd.epson.quickanime',
  'qbo': 'application/vnd.intu.qbo',
  'qfx': 'application/vnd.intu.qfx',
  'qps': 'application/vnd.publishare-delta-tree',
  'qt': 'video/quicktime',
  'qwd': 'application/vnd.quark.quarkxpress',
  'qwt': 'application/vnd.quark.quarkxpress',
  'qxb': 'application/vnd.quark.quarkxpress',
  'qxd': 'application/vnd.quark.quarkxpress',
  'qxl': 'application/vnd.quark.quarkxpress',
  'qxt': 'application/vnd.quark.quarkxpress',
  'ra': 'audio/x-realaudio',
  'ram': 'audio/x-pn-realaudio',
  'raml': 'application/raml+yaml',
  'rapd': 'application/route-apd+xml',
  'rar': 'application/x-rar-compressed',
  'ras': 'image/x-cmu-raster',
  'rcprofile': 'application/vnd.ipunplugged.rcprofile',
  'rdf': 'application/rdf+xml',
  'rdz': 'application/vnd.data-vision.rdz',
  'relo': 'application/p2p-overlay+xml',
  'rep': 'application/vnd.businessobjects',
  'res': 'application/x-dtbresource+xml',
  'rgb': 'image/x-rgb',
  'rif': 'application/reginfo+xml',
  'rip': 'audio/vnd.rip',
  'ris': 'application/x-research-info-systems',
  'rl': 'application/resource-lists+xml',
  'rlc': 'image/vnd.fujixerox.edmics-rlc',
  'rld': 'application/resource-lists-diff+xml',
  'rm': 'application/vnd.rn-realmedia',
  'rmi': 'audio/midi',
  'rmp': 'audio/x-pn-realaudio-plugin',
  'rms': 'application/vnd.jcp.javame.midlet-rms',
  'rmvb': 'application/vnd.rn-realmedia-vbr',
  'rnc': 'application/relax-ng-compact-syntax',
  'rng': 'application/xml',
  'roa': 'application/rpki-roa',
  'roff': 'text/troff',
  'rp9': 'application/vnd.cloanto.rp9',
  'rpm': 'application/x-redhat-package-manager',
  'rpss': 'application/vnd.nokia.radio-presets',
  'rpst': 'application/vnd.nokia.radio-preset',
  'rq': 'application/sparql-query',
  'rs': 'application/rls-services+xml',
  'rsat': 'application/atsc-rsat+xml',
  'rsd': 'application/rsd+xml',
  'rsheet': 'application/urc-ressheet+xml',
  'rss': 'application/rss+xml',
  'rtf': 'text/rtf',
  'rtx': 'text/richtext',
  'run': 'application/x-makeself',
  'rusd': 'application/route-usd+xml',
  's': 'text/x-asm',
  's3m': 'audio/s3m',
  'saf': 'application/vnd.yamaha.smaf-audio',
  'sass': 'text/x-sass',
  'sbml': 'application/sbml+xml',
  'sc': 'application/vnd.ibm.secure-container',
  'scd': 'application/x-msschedule',
  'scm': 'application/vnd.lotus-screencam',
  'scq': 'application/scvp-cv-request',
  'scs': 'application/scvp-cv-response',
  'scss': 'text/x-scss',
  'scurl': 'text/vnd.curl.scurl',
  'sda': 'application/vnd.stardivision.draw',
  'sdc': 'application/vnd.stardivision.calc',
  'sdd': 'application/vnd.stardivision.impress',
  'sdkd': 'application/vnd.solent.sdkm+xml',
  'sdkm': 'application/vnd.solent.sdkm+xml',
  'sdp': 'application/sdp',
  'sdw': 'application/vnd.stardivision.writer',
  'sea': 'application/x-sea',
  'see': 'application/vnd.seemail',
  'seed': 'application/vnd.fdsn.seed',
  'sema': 'application/vnd.sema',
  'semd': 'application/vnd.semd',
  'semf': 'application/vnd.semf',
  'senmlx': 'application/senml+xml',
  'sensmlx': 'application/sensml+xml',
  'ser': 'application/java-serialized-object',
  'setpay': 'application/set-payment-initiation',
  'setreg': 'application/set-registration-initiation',
  'sfd-hdstx': 'application/vnd.hydrostatix.sof-data',
  'sfs': 'application/vnd.spotfire.sfs',
  'sfv': 'text/x-sfv',
  'sgi': 'image/sgi',
  'sgl': 'application/vnd.stardivision.writer-global',
  'sgm': 'text/sgml',
  'sgml': 'text/sgml',
  'sh': 'application/x-sh',
  'shar': 'application/x-shar',
  'shex': 'text/shex',
  'shf': 'application/shf+xml',
  'shtml': 'text/html',
  'sid': 'image/x-mrsid-image',
  'sieve': 'application/sieve',
  'sig': 'application/pgp-signature',
  'sil': 'audio/silk',
  'silo': 'model/mesh',
  'sis': 'application/vnd.symbian.install',
  'sisx': 'application/vnd.symbian.install',
  'sit': 'application/x-stuffit',
  'sitx': 'application/x-stuffitx',
  'siv': 'application/sieve',
  'skd': 'application/vnd.koan',
  'skm': 'application/vnd.koan',
  'skp': 'application/vnd.koan',
  'skt': 'application/vnd.koan',
  'sldm': 'application/vnd.ms-powerpoint.slide.macroenabled.12',
  'sldx': 'application/vnd.openxmlformats-officedocument.presentationml.slide',
  'slim': 'text/slim',
  'slm': 'text/slim',
  'sls': 'application/route-s-tsid+xml',
  'slt': 'application/vnd.epson.salt',
  'sm': 'application/vnd.stepmania.stepchart',
  'smf': 'application/vnd.stardivision.math',
  'smi': 'application/smil+xml',
  'smil': 'application/smil+xml',
  'smv': 'video/x-smv',
  'smzip': 'application/vnd.stepmania.package',
  'snd': 'audio/basic',
  'snf': 'application/x-font-snf',
  'so': 'application/octet-stream',
  'spc': 'application/x-pkcs7-certificates',
  'spf': 'application/vnd.yamaha.smaf-phrase',
  'spl': 'application/x-futuresplash',
  'spot': 'text/vnd.in3d.spot',
  'spp': 'application/scvp-vp-response',
  'spq': 'application/scvp-vp-request',
  'spx': 'audio/ogg',
  'sql': 'application/x-sql',
  'src': 'application/x-wais-source',
  'srt': 'application/x-subrip',
  'sru': 'application/sru+xml',
  'srx': 'application/sparql-results+xml',
  'ssdl': 'application/ssdl+xml',
  'sse': 'application/vnd.kodak-descriptor',
  'ssf': 'application/vnd.epson.ssf',
  'ssml': 'application/ssml+xml',
  'st': 'application/vnd.sailingtracker.track',
  'stc': 'application/vnd.sun.xml.calc.template',
  'std': 'application/vnd.sun.xml.draw.template',
  'stf': 'application/vnd.wt.stf',
  'sti': 'application/vnd.sun.xml.impress.template',
  'stk': 'application/hyperstudio',
  'stl': 'model/stl',
  'str': 'application/vnd.pg.format',
  'stw': 'application/vnd.sun.xml.writer.template',
  'styl': 'text/stylus',
  'stylus': 'text/stylus',
  'sub': 'text/vnd.dvb.subtitle',
  'sus': 'application/vnd.sus-calendar',
  'susp': 'application/vnd.sus-calendar',
  'sv4cpio': 'application/x-sv4cpio',
  'sv4crc': 'application/x-sv4crc',
  'svc': 'application/vnd.dvb.service',
  'svd': 'application/vnd.svd',
  'svg': 'image/svg+xml',
  'svgz': 'image/svg+xml',
  'swa': 'application/x-director',
  'swf': 'application/x-shockwave-flash',
  'swi': 'application/vnd.aristanetworks.swi',
  'swidtag': 'application/swid+xml',
  'sxc': 'application/vnd.sun.xml.calc',
  'sxd': 'application/vnd.sun.xml.draw',
  'sxg': 'application/vnd.sun.xml.writer.global',
  'sxi': 'application/vnd.sun.xml.impress',
  'sxm': 'application/vnd.sun.xml.math',
  'sxw': 'application/vnd.sun.xml.writer',
  't': 'text/troff',
  't3': 'application/x-t3vm-image',
  't38': 'image/t38',
  'taglet': 'application/vnd.mynfc',
  'tao': 'application/vnd.tao.intent-module-archive',
  'tap': 'image/vnd.tencent.tap',
  'tar': 'application/x-tar',
  'tcap': 'application/vnd.3gpp2.tcap',
  'tcl': 'application/x-tcl',
  'teacher': 'application/vnd.smart.teacher',
  'tei': 'application/tei+xml',
  'teicorpus': 'application/tei+xml',
  'tex': 'application/x-tex',
  'texi': 'application/x-texinfo',
  'texinfo': 'application/x-texinfo',
  'text': 'text/plain',
  'tfi': 'application/thraud+xml',
  'tfm': 'application/x-tex-tfm',
  'tfx': 'image/tiff-fx',
  'tga': 'image/x-tga',
  'thmx': 'application/vnd.ms-officetheme',
  'tif': 'image/tiff',
  'tiff': 'image/tiff',
  'tk': 'application/x-tcl',
  'tmo': 'application/vnd.tmobile-livetv',
  'toml': 'application/toml',
  'torrent': 'application/x-bittorrent',
  'tpl': 'application/vnd.groove-tool-template',
  'tpt': 'application/vnd.trid.tpt',
  'tr': 'text/troff',
  'tra': 'application/vnd.trueapp',
  'trm': 'application/x-msterminal',
  'ts': 'video/mp2t',
  'tsd': 'application/timestamped-data',
  'tsv': 'text/tab-separated-values',
  'ttc': 'font/collection',
  'ttf': 'font/ttf',
  'ttl': 'text/turtle',
  'ttml': 'application/ttml+xml',
  'twd': 'application/vnd.simtech-mindmapper',
  'twds': 'application/vnd.simtech-mindmapper',
  'txd': 'application/vnd.genomatix.tuxedo',
  'txf': 'application/vnd.mobius.txf',
  'txt': 'text/plain',
  'u32': 'application/x-authorware-bin',
  'u8dsn': 'message/global-delivery-status',
  'u8hdr': 'message/global-headers',
  'u8mdn': 'message/global-disposition-notification',
  'u8msg': 'message/global',
  'udeb': 'application/x-debian-package',
  'ufd': 'application/vnd.ufdl',
  'ufdl': 'application/vnd.ufdl',
  'ulx': 'application/x-glulx',
  'umj': 'application/vnd.umajin',
  'unityweb': 'application/vnd.unity',
  'uoml': 'application/vnd.uoml+xml',
  'uri': 'text/uri-list',
  'uris': 'text/uri-list',
  'urls': 'text/uri-list',
  'usdz': 'model/vnd.usdz+zip',
  'ustar': 'application/x-ustar',
  'utz': 'application/vnd.uiq.theme',
  'uu': 'text/x-uuencode',
  'uva': 'audio/vnd.dece.audio',
  'uvd': 'application/vnd.dece.data',
  'uvf': 'application/vnd.dece.data',
  'uvg': 'image/vnd.dece.graphic',
  'uvh': 'video/vnd.dece.hd',
  'uvi': 'image/vnd.dece.graphic',
  'uvm': 'video/vnd.dece.mobile',
  'uvp': 'video/vnd.dece.pd',
  'uvs': 'video/vnd.dece.sd',
  'uvt': 'application/vnd.dece.ttml+xml',
  'uvu': 'video/vnd.uvvu.mp4',
  'uvv': 'video/vnd.dece.video',
  'uvva': 'audio/vnd.dece.audio',
  'uvvd': 'application/vnd.dece.data',
  'uvvf': 'application/vnd.dece.data',
  'uvvg': 'image/vnd.dece.graphic',
  'uvvh': 'video/vnd.dece.hd',
  'uvvi': 'image/vnd.dece.graphic',
  'uvvm': 'video/vnd.dece.mobile',
  'uvvp': 'video/vnd.dece.pd',
  'uvvs': 'video/vnd.dece.sd',
  'uvvt': 'application/vnd.dece.ttml+xml',
  'uvvu': 'video/vnd.uvvu.mp4',
  'uvvv': 'video/vnd.dece.video',
  'uvvx': 'application/vnd.dece.unspecified',
  'uvvz': 'application/vnd.dece.zip',
  'uvx': 'application/vnd.dece.unspecified',
  'uvz': 'application/vnd.dece.zip',
  'vbox': 'application/x-virtualbox-vbox',
  'vbox-extpack': 'application/x-virtualbox-vbox-extpack',
  'vcard': 'text/vcard',
  'vcd': 'application/x-cdlink',
  'vcf': 'text/x-vcard',
  'vcg': 'application/vnd.groove-vcard',
  'vcs': 'text/x-vcalendar',
  'vcx': 'application/vnd.vcx',
  'vdi': 'application/x-virtualbox-vdi',
  'vhd': 'application/x-virtualbox-vhd',
  'vis': 'application/vnd.visionary',
  'viv': 'video/vnd.vivo',
  'vmdk': 'application/x-virtualbox-vmdk',
  'vob': 'video/x-ms-vob',
  'vor': 'application/vnd.stardivision.writer',
  'vox': 'application/x-authorware-bin',
  'vrml': 'model/vrml',
  'vsd': 'application/vnd.visio',
  'vsf': 'application/vnd.vsf',
  'vss': 'application/vnd.visio',
  'vst': 'application/vnd.visio',
  'vsw': 'application/vnd.visio',
  'vtf': 'image/vnd.valve.source.texture',
  'vtt': 'text/vtt',
  'vtu': 'model/vnd.vtu',
  'vxml': 'application/voicexml+xml',
  'w3d': 'application/x-director',
  'wad': 'application/x-doom',
  'wadl': 'application/vnd.sun.wadl+xml',
  'war': 'application/java-archive',
  'wasm': 'application/wasm',
  'wav': 'audio/x-wav',
  'wax': 'audio/x-ms-wax',
  'wbmp': 'image/vnd.wap.wbmp',
  'wbs': 'application/vnd.criticaltools.wbs+xml',
  'wbxml': 'application/vnd.wap.wbxml',
  'wcm': 'application/vnd.ms-works',
  'wdb': 'application/vnd.ms-works',
  'wdp': 'image/vnd.ms-photo',
  'weba': 'audio/webm',
  'webapp': 'application/x-web-app-manifest+json',
  'webm': 'video/webm',
  'webmanifest': 'application/manifest+json',
  'webp': 'image/webp',
  'wg': 'application/vnd.pmi.widget',
  'wgt': 'application/widget',
  'wks': 'application/vnd.ms-works',
  'wm': 'video/x-ms-wm',
  'wma': 'audio/x-ms-wma',
  'wmd': 'application/x-ms-wmd',
  'wmf': 'image/wmf',
  'wml': 'text/vnd.wap.wml',
  'wmlc': 'application/vnd.wap.wmlc',
  'wmls': 'text/vnd.wap.wmlscript',
  'wmlsc': 'application/vnd.wap.wmlscriptc',
  'wmv': 'video/x-ms-wmv',
  'wmx': 'video/x-ms-wmx',
  'wmz': 'application/x-msmetafile',
  'woff': 'font/woff',
  'woff2': 'font/woff2',
  'wpd': 'application/vnd.wordperfect',
  'wpl': 'application/vnd.ms-wpl',
  'wps': 'application/vnd.ms-works',
  'wqd': 'application/vnd.wqd',
  'wri': 'application/x-mswrite',
  'wrl': 'model/vrml',
  'wsc': 'message/vnd.wfa.wsc',
  'wsdl': 'application/wsdl+xml',
  'wspolicy': 'application/wspolicy+xml',
  'wtb': 'application/vnd.webturbo',
  'wvx': 'video/x-ms-wvx',
  'x32': 'application/x-authorware-bin',
  'x3d': 'model/x3d+xml',
  'x3db': 'model/x3d+fastinfoset',
  'x3dbz': 'model/x3d+binary',
  'x3dv': 'model/x3d-vrml',
  'x3dvz': 'model/x3d+vrml',
  'x3dz': 'model/x3d+xml',
  'x_b': 'model/vnd.parasolid.transmit.binary',
  'x_t': 'model/vnd.parasolid.transmit.text',
  'xaml': 'application/xaml+xml',
  'xap': 'application/x-silverlight-app',
  'xar': 'application/vnd.xara',
  'xav': 'application/xcap-att+xml',
  'xbap': 'application/x-ms-xbap',
  'xbd': 'application/vnd.fujixerox.docuworks.binder',
  'xbm': 'image/x-xbitmap',
  'xca': 'application/xcap-caps+xml',
  'xcs': 'application/calendar+xml',
  'xdf': 'application/xcap-diff+xml',
  'xdm': 'application/vnd.syncml.dm+xml',
  'xdp': 'application/vnd.adobe.xdp+xml',
  'xdssc': 'application/dssc+xml',
  'xdw': 'application/vnd.fujixerox.docuworks',
  'xel': 'application/xcap-el+xml',
  'xenc': 'application/xenc+xml',
  'xer': 'application/xcap-error+xml',
  'xfdf': 'application/vnd.adobe.xfdf',
  'xfdl': 'application/vnd.xfdl',
  'xht': 'application/xhtml+xml',
  'xhtml': 'application/xhtml+xml',
  'xhvml': 'application/xv+xml',
  'xif': 'image/vnd.xiff',
  'xla': 'application/vnd.ms-excel',
  'xlam': 'application/vnd.ms-excel.addin.macroenabled.12',
  'xlc': 'application/vnd.ms-excel',
  'xlf': 'application/xliff+xml',
  'xlm': 'application/vnd.ms-excel',
  'xls': 'application/vnd.ms-excel',
  'xlsb': 'application/vnd.ms-excel.sheet.binary.macroenabled.12',
  'xlsm': 'application/vnd.ms-excel.sheet.macroenabled.12',
  'xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
  'xlt': 'application/vnd.ms-excel',
  'xltm': 'application/vnd.ms-excel.template.macroenabled.12',
  'xltx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
  'xlw': 'application/vnd.ms-excel',
  'xm': 'audio/xm',
  'xml': 'text/xml',
  'xns': 'application/xcap-ns+xml',
  'xo': 'application/vnd.olpc-sugar',
  'xop': 'application/xop+xml',
  'xpi': 'application/x-xpinstall',
  'xpl': 'application/xproc+xml',
  'xpm': 'image/x-xpixmap',
  'xpr': 'application/vnd.is-xpr',
  'xps': 'application/vnd.ms-xpsdocument',
  'xpw': 'application/vnd.intercon.formnet',
  'xpx': 'application/vnd.intercon.formnet',
  'xsd': 'application/xml',
  'xsl': 'application/xml',
  'xslt': 'application/xslt+xml',
  'xsm': 'application/vnd.syncml+xml',
  'xspf': 'application/xspf+xml',
  'xul': 'application/vnd.mozilla.xul+xml',
  'xvm': 'application/xv+xml',
  'xvml': 'application/xv+xml',
  'xwd': 'image/x-xwindowdump',
  'xyz': 'chemical/x-xyz',
  'xz': 'application/x-xz',
  'yaml': 'text/yaml',
  'yang': 'application/yang',
  'yin': 'application/yin+xml',
  'yml': 'text/yaml',
  'ymp': 'text/x-suse-ymp',
  'z1': 'application/x-zmachine',
  'z2': 'application/x-zmachine',
  'z3': 'application/x-zmachine',
  'z4': 'application/x-zmachine',
  'z5': 'application/x-zmachine',
  'z6': 'application/x-zmachine',
  'z7': 'application/x-zmachine',
  'z8': 'application/x-zmachine',
  'zaz': 'application/vnd.zzazz.deck+xml',
  'zip': 'application/zip',
  'zir': 'application/vnd.zul',
  'zirz': 'application/vnd.zul',
  'zmm': 'application/vnd.handheld-entertainment+xml'
}
 */
